Have fun, and do what ya can to fix any bugs/memory leaks I might have left in when I dropped working on this. I've been a bit too busy with work to keep it up!
(On first glance, 'SpriteSource_Create()' is the erea I neglected to finalize.)
Global Cam
Type SpriteSource
Field Mesh%, Surf%
Field Texture%
Field Frames%, FramesPerRow%
Field Animated%
Field RefImage%
End Type
Function SpriteSource_Create%(Camera%, File$, FramesPerRow% = -1)
viewwidth=GraphicsWidth()
viewheight=GraphicsHeight()
S.SpriteSource = New SpriteSource
magic=CreatePivot(Camera)
NameEntity(magic,"pixiespace")
aspect#=Float(viewheight)/viewwidth
PositionEntity magic,-1,aspect,1
scale#=2.0/viewwidth
ScaleEntity magic,scale,-scale,-scale
magic=CreatePivot(magic)
S\Mesh = CreateMesh(Magic)
EntityFX(S\Mesh, 2)
S\Surf = CreateSurface(S\Mesh)
PositionEntity S\Mesh, -.5, .5, 0
S\Texture = LoadTexture(File, 4)
S\RefImage = LoadImage(File)
If S\Texture <> 0 Then
EntityTexture S\Mesh, S\Texture
If FramesPerRow <> -1 And FramesPerRow > 0 Then
S\FramesPerRow = FramesPerRow
S\Animated = True
EndIf
EndIf
Return Handle(S)
End Function
Function SpriteSource_SetAnimation%(Source%, FramesPerRow%)
S.SpriteSource = Object.SpriteSource(Source)
S\FramesPerRow = FramesPerRow
S\Animated = True
End Function
Function SpriteSource_CacheSprites(Source%, W%, H%, Count%)
S.SpriteSource = Object.SpriteSource(Source)
If S = Null Then Return
For CS = 1 To Count
Sprite_Create%(Source, W, H)
Next
End Function
Function SpriteSource_AvailSprite(Source%)
For S.Sprite = Each Sprite
If S\Source = Object.SpriteSource(Source) And S\Draw = False Then
Return Handle(S)
EndIf
Next
End Function
Type Sprite
Field Source.SpriteSource
Field VertRef%
Field TriRef%
Field Draw%
Field DrawX%, DrawY%
Field Width%, Height%
Field HandleX%, HandleY%
Field RotAngle%, OffsetAngle%
Field CurFrameColumn#, CurFrame#, AnimTime%, AnimTimeMax%
Field Animated%
Field Active%
End Type
Function Sprite_Create%(Source%, W%, H%)
S.Sprite = New Sprite
S\Source = Object.SpriteSource(Source)
If W = 0 Or H = 0 Then
S\Width = ImageWidth(S\Source\RefImage)
S\Height = ImageWidth(S\Source\RefImage)
Else
S\Width = W
S\Height = H
EndIf
Sprite_CreateQuad(S)
Return Handle(S)
End Function
Function Sprite_Animate(Sprite%, Time%)
S.Sprite = Object.Sprite(Sprite)
If S\Source\Animated = True
S\AnimTimeMax = Time%
S\AnimTime = Time
S\Animated = True
EndIf
End Function
Function Sprite_Draw(Sprite, X, Y)
S.Sprite = Object.Sprite(Sprite)
S\Draw = True
S\DrawX = X
S\DrawY = Y
End Function
Function Sprite_Update(Delta# = 1.0)
For S.Sprite = Each Sprite
If S\Draw = True Then
If S\Source\Animated = True
S\AnimTime = S\AnimTime - 1
If S\AnimTime = 0 Then
S\AnimTime = S\AnimTimeMax
S\CurFrame = S\CurFrame + 1
If S\CurFrame = S\Source\FramesPerRow
S\CurFrame = 0
S\CurFrameColumn = S\CurFrameColumn + 1
If S\CurFrameColumn = S\Source\FramesPerRow
S\CurFrameColumn = 0
EndIf
EndIf
Dims# = .5;1.0 / (S\Source\FramesPerRow)
SU# = Dims * S\CurFrame
SV# = Dims * S\CurFrameColumn
VertexTexCoords(S\Source\Surf, S\VertRef, SU, SV)
VertexTexCoords(S\Source\Surf, S\VertRef+1, SU+Dims, SV)
VertexTexCoords(S\Source\Surf, S\VertRef+2, SU, SV+Dims)
VertexTexCoords(S\Source\Surf, S\VertRef+3, SU+Dims, SV+Dims)
EndIf
EndIf
S\Draw = False
EndIf
Next
End Function
Function Sprite_RenderAll()
For S.Sprite = Each Sprite
If S\Draw = True Then
;Top or "rear" vertices
Mag# = Sqr(S\Width*S\Width + S\Height*S\Height)*.5
CosVal# = Cos(S\RotAngle+S\OffsetAngle)
SinVal# = Sin(S\RotAngle+S\OffsetAngle)
Atan2Val# = ATan2(S\Height, S\Width)
VX# = (Cos((S\RotAngle+S\OffsetAngle) - Atan2Val)*Mag) + S\DrawX
VY# = (Sin((S\RotAngle+S\OffsetAngle) - Atan2Val)*Mag) + S\DrawY
VertexCoords(S\Source\Surf, S\VertRef+1, VX , VY, 0)
VX# = (Cos((S\RotAngle+S\OffsetAngle) + Atan2Val)*Mag) + S\DrawX
VY# = (Sin((S\RotAngle+S\OffsetAngle) + Atan2Val)*Mag) + S\DrawY
VertexCoords(S\Source\Surf, S\VertRef+3, VX , VY, 0)
VX# = (Cos((S\RotAngle+S\OffsetAngle+180) - Atan2Val)*Mag) + S\DrawX
VY# = (Sin((S\RotAngle+S\OffsetAngle+180) - Atan2Val)*Mag) + S\DrawY
VertexCoords(S\Source\Surf, S\VertRef+2, VX , VY, 0)
VX# = (Cos((S\RotAngle+S\OffsetAngle+180) + Atan2Val)*Mag) + S\DrawX
VY# = (Sin((S\RotAngle+S\OffsetAngle+180) + Atan2Val)*Mag) + S\DrawY
VertexCoords(S\Source\Surf, S\VertRef, VX , VY, 0)
ElseIf S\Draw = False Then
VX# = -100
VertexCoords(S\Source\Surf, S\VertRef+1, VX , VY, 0)
VertexCoords(S\Source\Surf, S\VertRef+3, VX , VY, 0)
VertexCoords(S\Source\Surf, S\VertRef+2, VX , VY, 0)
VertexCoords(S\Source\Surf, S\VertRef, VX , VY, 0)
EndIf
Next
End Function
Function Sprite_CreateQuad(S.Sprite)
V1 = AddVertex(S\Source\Surf, 0, 0, 0, 0, 0)
V2 = AddVertex(S\Source\Surf, 0, 0, 0, 1, 0)
V3 = AddVertex(S\Source\Surf, 0, 0, 0, 0, 1)
V4 = AddVertex(S\Source\Surf, 0, 0, 0, 1, 1)
; VertexColor S\Source\Surf, V1, 255, 0, 0
; VertexColor S\Source\Surf, V2, 0, 255, 0
; VertexColor S\Source\Surf, V3, 0, 0, 255
; VertexColor S\Source\Surf, V4, 255, 255, 255
S\VertRef = V1
T1 = AddTriangle(S\Source\Surf, V1, V2, V3)
AddTriangle(S\Source\Surf, V3, V2, V4)
End Function
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